A fault code doesn’t yet mean the unit or sensor itself is faulty: often it’s the plug and connector leading to it.
Possible causes
- The ECU cut the injector on the badly misfiring cylinder to protect the catalyst
- Spark plug, coil or injector on that cylinder
What you can do yourself
- The engine will run rough. Find the cylinder from codes P0301–P0312 and fix the cause of the misfire.
Stop and don’t drive on if:
- The Check Engine light is flashing
- The temperature gauge is in the red or the overheating light is on
- The red oil pressure light is on
- Smoke from under the bonnet, a burning or petrol smell
- Strong jerking, knocking from the engine, or the car barely moves
On Oleg’s website:Ignition module repair ↗
The explanation comes from the error code reference in the AvtoElektrik PRO app.